Subject of Newton's first law

The answer to “Subject of Newton's first law” in the New York Times crossword is INERTIA — a 7-letter word. It most recently appeared in the New York Times crossword on December 14, 2025, a Sunday puzzle, at 105-Across. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.

“Subject of Newton's first law” answer

INERTIA (7 letters)

Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is INERTIA.

Why the answer is INERTIA

INERTIA is the 7-letter solution that fits "Subject of Newton's first law" in the NYT Crossword crossword on December 14, 2025 (105-Across). Use the letter tiles above if you'd rather reveal it one letter at a time.

What does INERTIA mean?

Reading the plain dictionary sense of INERTIA is often the fastest way to see why it answers this clue.

When else has “Subject of Newton's first law” appeared?

New York Times reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.

December 14, 2025 (most recent) → INERTIA. We haven't indexed another appearance of this exact clue yet.

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